Changeset 580b330 in mainline for uspace/drv/bus/usb/ehci/hc.c

Timestamp:

2014-01-25T20:08:25Z (10 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

1803b7d

Parents:

d97f91f

Message:

ehci: Use correct flag to detect async advance event

Use mutex to protect against missed wakeup

File:

• uspace/drv/bus/usb/ehci/hc.c (modified) (1 diff)

uspace/drv/bus/usb/ehci/hc.c

@@ -311 +311 @@
                 ehci_rh_interrupt(&instance->rh);
         }
-        if (status & USB_STS_ASYNC_SCHED_FLAG) {
+        if (status & USB_STS_IRQ_ASYNC_ADVANCE_FLAG) {
+                fibril_mutex_lock(&instance->guard);
                 fibril_condvar_signal(&instance->async_doorbell);
+                fibril_mutex_unlock(&instance->guard);
         }
         if (status & (USB_STS_IRQ_FLAG | USB_STS_ERR_IRQ_FLAG)) {